/*
 * @Description: 测试类
 * @Author: rendc
 * @Date: 2023-11-19 14:26:39
 * @LastEditors: rendc
 * @LastEditTime: 2023-11-19 14:41:43
 */
public class TeacherTest{
  public static void main(String[] args){
    Teacher t1 = new Teacher();
    t1.sayHello();  
    Teacher t2 = new Teacher("02","t2",9999.99);
    t2.sayHello();  
    Teacher t3 = new Teacher("03","t3");
    t3.sayHello();  
  }
}